Problems with my brigde

This is my connection diagram of my net
4.png
I can ping with all users except on brigde3, from 10.0.0.1 ping to 10.0.0.3 but NOT to 10.0.0.6
From 10.0.0.3 I can ping with all
From 10.0.0.6 I only see brigde3

What’s the problem??? Why can’t I work Ips on brigde3 but I can see their MAC???

Thank you

RB450G
1.png
RB433AH (same in both)
3.png

I found answer!!

Easy, on RB433AH I need to conf like station-pseudobridge